Stop overpaying for LLMs.
Discover better models for your prompts - free
FastRouter audits your live requests, compares model performance, and shows exactly where you can cut costs without sacrificing quality.
Avg cost reduction across audits
Avg monthly savings identified
Minimum 7 days to run an audit
Most teams waste 40%+ of their AI budget
Teams default to the biggest model, a single provider, and hope for the best.
Overkill by Default
You don't need frontier models for every request. Most calls work just as well on cheaper ones.
Fragile Uptime
One provider fails, your product feels it. Multi-provider routing fixes this by default.
SOTA Model ≠ Better Quality
The most expensive model isn't always the best. Many alternatives match or beat quality for specific tasks.
No fixed timeline. You're in control.
The audit starts the moment your data is ready — not on a calendar. Run it on demand, let it trigger automatically at volume, or let the system handle it for you.
Get Your Audit Endpoint — One Line of Code
Sign up and replace existing API base URL. Requests forwarded unchanged — metadata only captured. Shows all 7 provider pills.
Traffic Flows — We Build Your Sample
As requests flow through your endpoint, we build a sample of your real API usage. You can watch your live stats in the dashboard. No minimum time — only minimum volume.
Run When You're Ready
Run the audit over a fixed 7-day window. The audit is triggered once the window closes.
Get Your Full Savings Report
A detailed breakdown of spend, savings by task type, quality benchmark results on your actual prompts, and a prioritised implementation roadmap with effort and impact estimates.
What your report includes
Findings built from your actual traffic — not generic benchmarks. Every recommendation comes with a savings estimate and quality score.
Cost Savings
See exactly where you're overpaying — and how much each switch saves.
Quality Comparison
Side-by-side outputs on your real prompts. Cheaper models often perform just as well — or better.
Reliability Gaps
Every provider failure logged. See what multi-provider routing would have prevented.
Latency Wins
Identify slow paths and faster alternatives for real-time calls.
Audit works with all major LLM providers
Stop guessing. Start optimizing.
Takes 5 minutes to set up. The audit runs when your data is ready — not when a timer runs out.
Loved by teams,
trusted by leaders
FastRouter is forged from the insights of high-performance engineering organizations. Unrelenting speed, automated workflows, and a commitment to the quality of your craft.
Vineet Kumar
Head of Technology - CX at Verticurl
FastRouter is a good value add, specifically when you are not sure which LLM is better for your use cases. You can play around with models, can compare against them, and then use normal OpenAI compatible APIs call to leverage the full potential of it.
Dr. Rishabh Bhandari
Founder, Medisha
Excellent platform to test the latest LLMs for our use case. With new LLMs coming out every few weeks and benchmarks not giving the full picture, I rely on Fastrouter.ai to optimize my cost vs quality balance.
Sainath Gupta
Founder, Knit Finance
Amazing product. Have had a great experience using FastRouter. Reliable access to models across providers helps removes the worry about outages or vendor lock-in.
Vineet Kumar
Head of Technology - CX at Verticurl
FastRouter is a good value add, specifically when you are not sure which LLM is better for your use cases. You can play around with models, can compare against them, and then use normal OpenAI compatible APIs call to leverage the full potential of it.
Dr. Rishabh Bhandari
Founder, Medisha
Excellent platform to test the latest LLMs for our use case. With new LLMs coming out every few weeks and benchmarks not giving the full picture, I rely on Fastrouter.ai to optimize my cost vs quality balance.
Sainath Gupta
Founder, Knit Finance
Amazing product. Have had a great experience using FastRouter. Reliable access to models across providers helps removes the worry about outages or vendor lock-in.
Vineet Kumar
Head of Technology - CX at Verticurl
FastRouter is a good value add, specifically when you are not sure which LLM is better for your use cases. You can play around with models, can compare against them, and then use normal OpenAI compatible APIs call to leverage the full potential of it.
Dr. Rishabh Bhandari
Founder, Medisha
Excellent platform to test the latest LLMs for our use case. With new LLMs coming out every few weeks and benchmarks not giving the full picture, I rely on Fastrouter.ai to optimize my cost vs quality balance.
Sainath Gupta
Founder, Knit Finance
Amazing product. Have had a great experience using FastRouter. Reliable access to models across providers helps removes the worry about outages or vendor lock-in.